Door-lock installation



Aug.7 Z6 1924.

w. C. DEVEREAUX DOOR LOCK INSTALLATION Filed May 7, 1923 "and gn'uanfcoz Patented Aug. 26, 1924.

yl,506,05l-

UNITED STATES 'ATENT OFFICE.y

WILLXAM C. DEVEREAUX, 0F DETROIT, MICHIGAN.

DOOR-LOCK INSTALLATION.

Application led May 7, 1923.

To all whom t may concern.'

Be it known that I, WILLLAM C. Duv- EREAUX, a citizen of the United Sta-tes of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful improvements in Door-Lock installations, of which the following is a specication, reference being had therein to the accompanying drawings.

The invention relates to door locl; installations and refers particularly to closed vehicle body door locks. The object of my invention is to provide a simple device for securing the locking mechanism to the door whereby when the door is locked in closed position the locking mechanism cannot be successfully tampered with. With its object in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

in the drawings:

Figure l is a side elevation of a portion of a door provided with a door lock installation embodying my invention;

Figure 2 is an edge elevation thereof;

Figure 3 is a cross section on the line 3-3 and showing a portion of the latch mechanism;

Figures 4, 5 and 6 are views similar to Figure 3 but showing the method of securing a portion of the device for holding the locking mechanism in the door;

Figure 7 is a cross section on the line 7-7 of Figure 6.

l is the door of a closed vehicle body, such as a sedan and 2 is the latch mechanism mounted at the swinging edge of the door and provided with the reciprocable bolt 3 for holding the door in closed position, this bolt being actuated in any usual manner. For locking the bolt 3 from inward movement to thereby lock the door in closed position, l have provided the roclrable member l engageable with the bolt and actuated by the shank 5 which in turn is actuated by the mechanism within the cylinder or housing 6 of a key cylinder lock. This cylinder locking mechanism extends transversely of the pillar 7 at the swinging edge of the door and is actuated by a key inserted from the outer side of the door.

For securing the locking mechanism in the pillar, I have provided the bore 8 extending transversely of the bore 9 which receives the Serial No. 637,370.

cylinder or housing 6, this bore 8 extending to the swinging edge of the door and opening into the bore 9. l0 is an internally threaded bushing provided with a polygonal flange or head 1l and having a press fit in the transverse bore 8. This bushing has a length less than the diameter of the bore 9 to permit of its insertion into the bore 8 from its inner end. As shown in Figures 4, 5, 6 and 7, the bushing is first inserted into the bore 9 to register with the bore 8 and then pressed into the bore 8 until its polygonal head or flange has sheared into the wood of the pillar so that the bushing is held from rotation.

12 is a screw inserted from the outer end of the bore 8 and threadedly engaging the bushing 10, this screw preferably having a pointed or conical end for engaging the housing or cylinder 6 to hold the same from longitudinal movement, the portion of the cylinder or housing engaged by the screw being preferably roughened or serrated to assist in securing a more firm and gripping action.

`With this arrangement it will be readily seen that I have provided a simple arrangement for preventing the removal of the locking mechanism of a closed vehicle body door when in closed position, since the device for holding the locking mechanism is not accessible owing to the fact that it is in the swinging edge of the door. Furthermore, by providing a bushing with a polygonal head or fiange which is insertable from the inner end of the transverse bore, the bushing is held from rotation and greater pressure of the set screw upon the cylinder or housing cf the locking mechanism can be secured, than if the set screw were directly threaded into the wooden pillar.

l/Vhat I claim as my invention is:

l. The combination with a door having a transversely extending bore and a longitudinally extending bore connecting into the transverse bore, of a loclr cylinder in the transverse bore having a serrated outer sur-` face, a bushing having a pressed tit in the longitudinally extending bore, a polygonal flange at one end of the bushing embedded in the wood work of the door7 and a screw threadedly engaging the bushing and having a pointed end portion engageable with the serrated portion of the lock cylinder to prevent longitudinal movement thereof.

2. The combination with a door having a transversely extending bore and a longitudinally extending bore connecting into the transverse bore, of a look cylinder in the transverse bore having a depression in its outer surface, a bushing having a pressed 'lit in the longitudinally extending bore, a polygonal flange at one end of the bushing embedded in the Wood Work of the door, and

a Screw threadedly engaging the bushing and having a portion engageable with the depression in the outer surface of the look cylinder to prevent longitudinal movement of the cylinder in the transverse bore aforesaid.

In testimony whereof l aX my signature.

WILLIAM C. DEVEREAUX. 

